641098641842 has 16 divisors (see below), whose sum is σ = 962168613120. Its totient is φ = 320375823168.

The previous prime is 641098641829. The next prime is 641098641847. The reversal of 641098641842 is 248146890146.

It is a super-2 number, since 2×641098641842² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641098641847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37353659 + ... + 37370817.

It is an arithmetic number, because the mean of its divisors is an integer number (60135538320).

Almost surely, 2^641098641842 is an apocalyptic number.

641098641842 is a deficient number, since it is larger than the sum of its proper divisors (321069971278).

641098641842 is a wasteful number, since it uses less digits than its factorization.

641098641842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26185.

The product of its (nonzero) digits is 2654208, while the sum is 53.

The spelling of 641098641842 in words is "six hundred forty-one billion, ninety-eight million, six hundred forty-one thousand, eight hundred forty-two".